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AVANZ NEWS - Society of Antique Modelers
AVANZ                                                     NEWS
Newsletter of the Vintage Special Interest Group of Model Flying New Zealand #180
AVANZ NEWS - Society of Antique Modelers
COMMITTEE NOTICES

In this Issue
Committee Notices
Future Events
Past Events
SIFFC
Gary Burrows
Angus Macdonald
Hummingbird
Nordic A2
Sparkies
Mercurio 1943
The Kid 1941
Old School building
Eros 1948
Early references
Readers' Models
Model stand
Real Vintage
Frank Zaic
1/2A Texaco Tuning
MFHB Newsletter
Cox Engines #2
Leader Boards
Free Flight Dreaming
Cover Stories                  On the Cover: Eros, 1948 (see page 23)                            Contributors to this Issue
Real Vintage                   NZ Logo: Karitane Nurses (see miscellaneous page)                 Bill Long Malcolm Campbell Barrie Russell
Miscellaneous                                                                                    Dave Crook John Urry Gary Burrows

SIG CHAIRMAN      Don Mossop donmossop@gmail.com                               TREASURER         Jan Butcher jjbutcher@xtra.co.nz
SIG SECRETARY     Don Mossop donmossop@gmail.com                               AVANZ PLANS       Mark Venter avanz.plans@xtra.co.nz
MFNZ COLUMN       Wayne Cartwright and David Crook chloecat@xtra.co.nz         AVANZ News        Bernard Scott   scott.scott@xtra.co.nz
COMMITTEE         Wayne Cartwright rwcartwright4@gmail.com     Tony Gribble agrib@orcon.net.nz   Bryan Treloar bryan_treloar@hotmail.com
                  Warner Summerton gsumm@gmail.com          Allan Knox allan.j.knox@gmail.com    Barrie Russell barrierussell@xtra.co.nz

     AVANZ NEWS      November 2020                                                                            Issue 180       Page 2
AVANZ NEWS - Society of Antique Modelers
FUTURE EVENTS                        Final Notice: events marked        take place before the next bulletin

2021 NZ Radio Control Vintage Championships                    2021 NZ Free Flight Vintage Championships
Preliminary Schedule
                                                              As detailed in Issue 179, the Free Flight component of the 2021
February   20-21   Airsail at Pukekawa                        Vintage Championships is based on the 2021 NDC programme
March      6-7     Levin (concurrent with Gareth Newton)      from Jan to June. The Champs offer two opportunities to fly each
                                                              event. Those scheduled once only on the NDC programme are
March      20-21   Ngatea Blackfeet Fliers                    marked (x2) and these events can be flown twice in the month in
April      10-11   Awatoto                                    which they appear on the programme. Results are sent to Wayne
April      17-18   Tuakau (to be confirmed by club)           Cartwright for inclusion on the Leader Boards, and in the Vintage
                                                              Championship. Each flier sends his NDC results to Allan Knox.
May        9-10    Levin (concurrent with Bob Burling )

Non Vintage Championship Events 2020 / 2021
November 14-15     2020        Blackfeet
January    3-8     2021        Nationals
May        22-23   2021        Blackfeet
September 25-26    2021        Selby Memorial, Levin

NDC 2020

AVANZ News 2021 Contribution Deadlines:
JANUARY    25th    MARCH       25th        MAY 25th
JULY       25th    SEPT        25th        NOV 25th

      AVANZ NEWS   November 2020                                                                 Issue 180    Page 3
AVANZ NEWS - Society of Antique Modelers
PAST EVENTS                                  AIRSAIL                   19-20 September                            Dave Crook

  Airsail MAC RC Vintage and Classical Contest
                                                                                      Classical Precision
                   and Rally
                                                                                      David Gush          Glow Worm               199     175    170     544

                                                                                      Vintage E Duration
                                                                                      Don Mossop         Playboy                  310     320    320     950
CD’s Report
                                                                                      Classical E Duration
The first Vintage event for the new season was held at Airsail on the weekend
                                                                                      David Gush           Glow Worm              300     300    300     900 *
19-20 September and as always a huge thank you to John Danks for the use
                                                                                      Wayne Cartwright     Nig Nog                300     287    300     887
of his field.
Saturday was a blow out with no flights recorded and only three hardy souls
                                                                                      Vintage A Texaco
braving the near gale. Sunday was the pick of the days with light winds till mid-
                                                                                      John Butcher           Miss FX              615     620            1235
morning and freshening slightly as the day wore on. Six flew and recorded 31
scores. No broken models, apart from one pilot who lost control of his model
                                                                                      Vintage 1/2 A Texaco
when his transmitter aerial fell off but luckily a certain Honda Jazz broke the
                                                                                      Bernard Scott        Playboy Snr            500     490    500     1490
models fall. John replaced the aerial and Don continued to fly without problems.

Now that the first event is over we can look forward to Tuakau in October.

Tony and Dave                                                                         Note:
                                                                                      * David Gush flew an additional flight in Classical E Duration of 6 min 11
Vintage Precision                              R1     R2      R3      Total           seconds for a combined total of 1271 points.
Don Mossop             Lanzo Bomber            200    188     190     578             This was for the purpose of the Leader Board scores only as there was no
Tony Gribble           Miss FX                 185    194             379             tied score on the day nor was Classical E Duration an NDC event for the
                                                                                      month of September.

      AVANZ NEWS          November 2020                                                                                      Issue 180      Page 4
AVANZ NEWS - Society of Antique Modelers
PAST EVENTS                                        TUAKAU                     17-18 October                                 Dave Crook
                                                                                                                          R1     R2     R3    Total
What a difference a day makes. Tuakau on the Saturday while fine was a wee          Vintage Precision
bit on the cool side and I for one was glad that my wife suggested I put a          John Ryan              Coronet199     200    200          599
sweat shirt in the car…….just in case. It so happened that everyone was             Don Mossop             Bomber200      195    200          595
layering up. There was also a bit of a chilly wind present. Not enough to call      Dave Crook             Miss FX        200    180    200   580
a halt to any flying but the air passing over the field was anything but kind.      Dave Little            Simplex190     178    200          568
The easiest way to describe it for those that weren’t present would be like
your plane tumbling around in a clothes dryer all day. Down low or up high          Classical Precision
it didn’t matter. Not a lot of fun to tell the truth.                               Don Mossop             Madcap145      197    195          537

For all those that flew Saturday, well done. Especially to both John Ryan and       Vintage IC Duration
Dave Little who came up from Rotorua and flew pretty much all day. Hate             John Ryan              Coronet        127    252    177   556
to say this guys but Sunday was the better day. And what a corker it turned         Dave Little            Simplex        123    91     133   347
out to be and totally restored my faith in flying Vintage after numerous
cancellations due to not so nice weather over the last 12 months. Lots of sun       Vintage E Duration
and hardly a breeze to speak of. It was around late morning when the whole          Don Mossop             Playboy        276    320    320   916
of the field reacted to the warmth of the sun and everyone was having a             Peter Townsend         Civiy Boy      301    320    200   821
great time.
                                                                                    Classical E Duration
Those of note were both Don Mossop and John Butcher flying E Rubber                 Peter Townsend         Glow Worm      300    173    137   610
Texaco on Sunday afternoon. Don flying his Stormont which enjoyed
turning left but not so much to the right, which Don says he will investigate       Vintage 1/2 A Texaco
and fix the problem, his only flight was still a very creditable 27 minutes         John Ryan            Coronet430       500    353          1283
12 seconds. John Butcher being one of the local lads obviously knew when            Dave Little          Simplex191       116    218          525
the right time to fly was and went about demolishing the field with his two
flights of 36 and 26 minutes respectively. It’s at this point I wish to advise      Vintage 1/2 E Texaco
that myself, Tony Gribble and Wayne Cartwright all flew E Rubber on                 Bernard Scott        Bombshell        893    1087         1980
Saturday. Not complaining, just saying…….                                           Kyla Fisher          Kea              689    721          1410

In E Texaco both Dave Crook and Don Mossop were enjoying the Tuakau                 Vintage E Texaco
conditions with first round flights over the 20 minute mark. David Gush             Dave Crook             Bomber         1701   834          2535
doing likewise in E Tomboy with Bernard Scott's Jumpin Bean in Classical            Don Mossop             MG-2           1382   778          2160
1/2 E Texaco recording high scores. Another notable standout was Peter
Townsend with his Civiy Boy which was almost out of sight after only 10             Vintage E Rubber Texaco
seconds from launching in E Duration. Incredible.                                   John Butcher         Golly Wock       2190   1567         3757
                                                                                    David Gush           Golly Wock       905    1310         2215
Thank you to the Tuakau MAC for hosting the event and to everyone who               Dave Crook           Toots            930    1132         2062
turned up and flew, I hope you enjoyed your day if not your weekend.                Wayne Cartwright     Lanzo Stick      1009   849          1858
                                                                                    Don Mossop           Stormont         1646                1646
Next up is Blackfeet in November. Stay tuned.                   Dave.               Tony Gribble        Smith Mulvihill   840    621          1461

AVANZ NEWS          November 2020                                                                                         Issue 180     Page 5
AVANZ NEWS - Society of Antique Modelers
PAST EVENTS                                  TUAKAU   17-18 October     Dave Crook

                                      R1     R2      Total

Classical 1/2 E Texaco
Bernard Scott          Jumpin Bean 782       1164    1946
Dave Crook             Hot Dog      895      562     1457
Tony Gribble           1/2A Train  766       616     1382

Sports Cabin E Texaco (Best 2 of 3)
David Gush           Tomboy           996    612     1608
John Butcher         Tomboy           993    374     1367

Tomboy - E (Best 2 of 3)
David Gush            Tomboy          1463   1410    2873

Tomboy - IC (Best 2 of 3)
Bernard Scott         Tomboy          148    293     441

 Resisting the mighty pull
 of his Tomboy's motor,
 John advances the
 throttle with his teeth

   AVANZ NEWS         November 2020                                          Issue 180   Page 6
AVANZ NEWS - Society of Antique Modelers
PAST EVENTS                           TUAKAU                               17-18 October

                                                           Vibrant Civvy Boy and Gloworm
                                                           both by Peter Townsend

 CD Dave
with Hotdog
for Classical
1/2E and
Miss FX for
Precision

                                 Packing? What packing??

                                                                                                    Don lanches his Stormont,
                                                                                                    an E-Rubber Texaco floater

          AVANZ NEWS   November 2020                                                            Issue 180   Page 7
AVANZ NEWS - Society of Antique Modelers
JOHN SELBY MEMORIAL EVENT                                                    26th Sept         Stew Cox

Considering the weather in the days before,        the next Levin contest. Four from Hawkes
and the dramatic storm that hit the country        Bay had planned to attend but the marginal
on the Sunday and Monday, Levin put on yet         weather window resulted in them flying
another example of its           microclimate,     locally on this occasion – we look forward to
enabling a full days flying for the John Selby     seeing         them         next        time.
event. While Saturday's weather wasn’t
perfect, starting a bit windier than forecast,     There was a wide range of models on display
it was quite flyable all day and, as predicted,    including a couple of Buzzard Bombshells,
the wind dropped throughout the afternoon          three Mercurys, Red Zephyr, Powerhouse,
with    almost no wind and balmy warm              Junior 60, Tomboys both very large and
conditions as we packed up. A lot of flying        small, Miss America, Mamselle, Playboy
was done on the Saturday but with the dire         Senior, Lanzo Bomber, Lanzo Airborne and a
weather forecast for Sunday, which did             Brooklyn Dodger.
eventuate, the second day unfortunately had
                                                   Vintage Precision was the event that most
to                be                  cancelled.
                                                   were keen to fly. The spot as always made
                                                   the difference to the scores in Precision and
The low key format of these Levin events is
                                                   the moderate breeze in the morning made                         Greg Findon,
proving popular with interest growing.
                                                   finding the spot both fun and elusive for                       Aeroneers
Despite a few regulars not able to attend,                                                                         Powerhouse
                                                   many. Barry Hall from Wellington flew an
there was still a very good turnout under the
                                                   electric 1940 Buzzard Bombshell originally
circumstances - 14 pilots flying Vintage
                                                   built by John Ellison of Kapiti who was also
models, 11 putting in scores, and three sport
                                                   flying on the day. Barry was the only person
flying. Some who put in competition flights
                                                   who managed to land on the spot for all three
also brought along other vintage models and
                                                   flights and he also made his flight times.
a lot of sport flying was done. There was a
                                                   Barry put in a near perfect fly-off flight only
strong turnout from the Kapiti club with
                                                   one second over and again landed on the spot
seven attendees and the other clubs
                                                   – a worthy winner. Bryan Treloar (1936 Red
represented included Ashurst, Wellington,
                                                   Zephyr) and, Peter Vining (1939 Mercury)
Palmerston North Aeroneers, and Levin. It
                                                   and John Miller (1940 Buzzard Bombshell) all
was great to have representation from the
                                                   flew well and were second to fourth
Palmerston North Aeroneers for the first
                                                   respectively but each missed the spot on one
time. The Aeroneers have a regular club
                                                   of their landings. It was good to see the first                 Bryan Treloar,
vintage competition and we look forward to
                                                   four spots going to members of four                             Ashurst
attendees Peter Vining and Greg Findon                                                                             Airborn
                                                   different clubs.
bringing along more Aeroneers colleagues to

     AVANZ NEWS         November 2020                                                                Issue 180   Page 8
AVANZ NEWS - Society of Antique Modelers
JOHN SELBY MEMORIAL EVENT                                                      26th Sept     Stew Cox
Bryan and Stew also put up some A            from Ashurst who is getting into Vintage
Texaco flights. This class is about          and took many wonderful photos, some
endurance and the goal is to get as long     of which are published here.
a motor run out of a tank made from a
                                             Vintage Precision
Humbrol paint tin to help you achieve the
10 minute max followed by a spot landing.    1.     Barry Hall      WMAC        799
Bryan’s 1939 Lanzo Airborne was              2.     Bryan Treloar   Ashurst     585
powered by an Oliver Tiger 2.5cc diesel      3.     Peter Vining    PNA         582
which on a large prop and just ticking
                                             4.     John Miller     Kapiti      576
over is capable of runs for around 12
minutes making the 600 second flights        5.     Greg Findon     PNA         574
easily achievable. Bryan made the time       6.     Terry BeaumontKapiti        571
on all three flights and missed only one     7.     Wayne Elley     Kapiti      554
spot to achieve a very good score.           8.     Stew Cox        Levin       553
In both events Stew flew his 1942            9.     Ian Crosland    Kapiti      522
Brooklyn Dodger which he acquired from       10.    Stuart Hubbard Ashurst      329
John Selby’s estate with John having         11.    John Ellison    Kapiti      140
previously acquired the model from its
builder, Tony Taylor who sadly also left
us recently. The day didn’t start too well   Vintage A Texaco
                                             1.     Bryan Treloar   Ashurst   1844
                                                                                                                     John Ellison,
for Stew with the torque of the electric                                                                             Mam'selle
starter ripping off the entire nose of       2.     Stew Cox        Levin     1138
the model exposing a repair John must
have made many years ago. Variable
thrust-line might be fine for a
Eurofighter but not so a vintage model
so Stew made a field repair with 5
minute epoxy and was able to fly after
lunch.    By comparison with Bryan’s
diesel, in A Texaco, Stew was getting
motor runs of about 6 ½ minutes from
the OS20 plain bearing motor for the
two flights he recorded.
A big thanks to Ivan and Linda from
Levin MAC for putting on a BBQ which                                                                                Wayne Elley,
added to the relaxed atmosphere of the                                                                              Kapiti
day. Also special thanks to Ross Gray                                                                               Miss America

      AVANZ NEWS          November 2020                                                             Issue 180   Page 9
AVANZ NEWS - Society of Antique Modelers
JOHN SELBY MEMORIAL EVENT   Photographs by Ross Gray

AVANZ NEWS   November 2020               Issue 180   Page 10
JOHN SELBY MEMORIAL EVENT                 Photographs by Ross Gray

                                                                               Wayne Elley,
                                                                               Kapiti
                                                                               Miss America

Barry Hall,                         Stu Hubbard,                              John Millar,
Wellington                          Ashurst                                   Kapiti
Bombshell                           Junior Sixty                              Bombshell

       AVANZ NEWS   November 2020                              Issue 180   Page 11
South Island Free Flight Champs                                                           Bill Long
[ While not strictly a Vintage event, the welcome revival of this
Southern contest is worthy of note - and some Vintage designs
were flown ]                                                                                              Great weather all weekend
This was the first South Island champs held for
several years and despite the risk that it may flop,
my initial thought was that if we could get this contest
off the ground it would encourage free flight
modellers in the South to brush the cobwebs off their
models and get flying again. Unfortunately, Covid
restrictions and not knowing if the event could go
ahead did not help. Even so, we had modellers from
Balclutha and Dunedin, and from up North came
three top guns, all of which demonstrated to me that
the event could have a future.

I don’t believe we could have dialled better weather.
It was fantastic. At the start of the contest, the light
breeze was coming straight off the Southern Alps
and as it was a clear day, this provided a magnificent
view. The wind direction was north / northwest
meaning that we used the top south corner of the
flying field.

With one exception, the classes we flew had two
minute maxima which kept the models within the
field. By lunch time the breeze had shifted so we
moved to the adjacent corner of the field with
conditions remaining just as good. Day two followed
day one exactly. Flying the events over two days
with competitors choosing either day or splitting
times for the one class appeared to be a winner.
Preparation for the contest was helped by the Free
Flight Tech Committee and Bernard Scott. There
were others and Dave Jackson of course - without
these guys I know the event may have struggled.                     Chris Jackson winding for P-30

       AVANZ NEWS            November 2020                                                                 Issue 180   Page 12
South Island Free Flight Champs     Bill Long
                                           Things that caught my eye: I was proud of
Julius Long and son William sorting        one modeller who had been loaned Lynn‘s
out a Simplex for Precision                Tomboy and started the Mills by herself for
                                           the first time, but on the third time she
                                           reached for the model via the propeller and
                                           out came the first aid kit. I haven’t asked Lynn
                                           if he has put a notch on the transfer case of
                                           the Mills. Next were the impressive skills that
                                           Bernard showed with the handling of his
                                           power models, and very interesting was
                                           Craig King’s tuition with Anthony on the finer
                                           details of circle towing with F1A.
                                           Saturday night we went to the pub at
                                           Avonhead Mall and a good evening was had
                                           by all. The feedback I got about the meeting
                                           was that it was long overdue with comments
                                           that     included   the    words    relaxing,
                                           camaraderie, catching-up, and involved. All
                                           due not to those who revived this event but to
                                           those who made the effort to travel the
                                           country to be there and especially the club
                                           members who turned out in full.
                                           When I got home my emails included an
                                           apology for illness from Bruce Weatherall
                                           and Gary Burrows - both now passed away,
                                           leaving one mighty large hole in the club.
                                           Finally, a big thank you to CMAC for the use
                                           of the field, for without this suitable location
                                           the contest would have proved difficult to
                                           hold.
                                                                           Bill Long, CD
      AVANZ NEWS       November 2020                     Issue 180     Page 13
South Island Free Flight Champs   Results

AVANZ NEWS   November 2020                        Issue 180   Page 14
VALE GARY LANCE BURROWS
       16 June 1939 - 12 August. 2020
It is with great sadness that we advise that our club member,
Mr.Gary Lance Burrows has passed away at the age of 81.

He was a Life Member of both the Christchurch Model Aero Club
(CMAC) and Model Flying New Zealand.

He had been a member of CMAC for approximately 60 years and
obviously aviation was truly in his blood as his whole working life had
been spent working as an aircraft engineer for NAC. and, after a
company name change, until his retirement at Air New Zealand.

He was involved in his earlier days with playing hockey, and spent
many hours fly fishing for trout

As a good organiser he was on the organising committee for the
Trans Tasman RC events in the 1970's and from the proceeds of
those events he designed and built the CIRRUS TROPHY that was
competed for each June between the local model aero clubs.

During the 1970's that Gary was the producer of the SIN magazine -
more formally known as the 'South Island News' with the late Paul
Lagan as the Editor. The SIN magazine became known world wide
but is no longer in print, the last issue being produced some 30
years ago.

Gary was at the time of his death both a CMAC committee member,
and perhaps more importantly the editor of the monthly CMAC
bulletin known as the TORQUE. The TORQUE was 'his baby' and
he had over the years produced approximately 200 editions. He had
indicated very recently that it was time for change.

Most Sunday mornings Gary would be at the local model flying site
enjoying the flying sessions and more importantly the comradeship
with his mates. Many don't know that Gary made regular visits to the
older club members to check on their health and well-being. He was
always concerned about everyone, and was the first to help those in
need.

He will be missed.                              Gary's advice on 1/2A Texaco is
Christchurch Model Aero Club.                   reproduced later in this issue.

    AVANZ NEWS           November 2020                                            Issue 180   Page 15
VALE         ANGUS MACDONALD

Angus Macdonald joined the Auckland Model Aero Club in 1935,
but judging by photographs in his old photo album had had already
been building models for several years by then. He joined the
Auckland Model Aero Club in January 1936. Angus has always
taken more than his share of responsibility in club management. He
was a Committee Man in 1942, Treasurer in 1944, Bulletin Editor in
1949, Committee Man again in 1955. Vice President 1956 - 1964,
Secretary in 1964, President 1965 - 1968, Vice President 1969 -
1973, Vice President 1975 - 1984, Patron 1985 - 1986, and Patron
again in 2003.

Angus represented New Zealand in F1A in 1965 and Wakefield in
1949, 1973 and 1989. He was Champion of Champions at the 1948
Nationals, and was also Rubber/Glider Champion in the same year.
He was the designer of many models kitted by Modelair. In 1948
came the Buzz Bee, in 1950 the Gnat, (both control liners), and in
1950 and 1952, the Kea I and Kea II free flight kits respectively,
After the death of his father in 1952, Angus took over the running of
Modelair, and continued to design kits. In 1962 came the Humming
Bird, (probably the most popular kit of all), the Seeker series of R/C
gliders in 1968, followed in 1980 by the Bazooka R/C combat kit,
and later the Lancer and Skinny B R/C kits.

More recently, Angus had been a tireless worker for Auckland Soar,
and has always been ready to adopt the latest air-frame technology,
and develop it further. As a person, Angus has always been willing
to provide help in a quiet and modest manner, be it in Club matters,
or in assisting fellow modellers.

    AVANZ NEWS       November 2020                                       Issue 180   Page 16
MODELAIR HUMMINGBIRD       July 1962   Angus Macdonald

Angus's
Hummingbird.

The NZ Tomboy ?

Many tips are
included on the
plan to help
beginners.
While high-wing
Hummingbirds are
commonly used in
Aggregate events,
the mid-wing and
low-wing versions
(the latter with
modified rudder)
are rarities.
Provision for an
RC rudder is also
on the plan.

         AVANZ NEWS   November 2020                   Issue 180   Page 17
NORDIC A2             1964   Angus Macdonald

AVANZ NEWS   November 2020                      Issue 180   Page 18
Three more Vintage Spark Ignition Engines

AVANZ NEWS   November 2020                   Issue 180   Page 19
The ITALIAN JOB #16             MERCURIO 1943   A. Castellani

   AVANZ NEWS   November 2020                     Issue 180   Page 20
French Connection #2             THE KID 1941   M. Bougueret

    AVANZ NEWS   November 2020                     Issue 180   Page 21
Old-School Building        1936

AVANZ NEWS   November 2020          Issue 180   Page 22
EROS                        John Coasby   Aeromodeller January 1948

AVANZ NEWS   November 2020                               Issue 180   Page 23
EARLY AEROMODELLING REFERENCE BOOKS
Starchy language and imperious style often make early aeromodelling books heavy and sometimes amusing reading for today's less serious aeromodeller, yet they
contain much from which we can learn. At the very least, they illuminate the world of those truly Vintage Aeromodellers - the ones who were building Vintage models
when they were not Vintage at all. First up, an innocuous little publication presenting thirty-seven airfoils considered by the author to be useful to aeromodellers. Early
in the book the author demonstrates that he really knows what's important in aeromodelling by juggling numbers and letters across equations. Although (I am guessing)
the average modeller would have rarely used such an academic approach, or even understood the mathmatical argle-bargle, the graphed sections that followed would
have been of great help in a era before computer generated airfoils.

       AVANZ NEWS           November 2020                                                                                             Issue 180       Page 24
READER'S MODEL                 John Urry

At last, a few calm days, so I made
the 75 km trip to the field early to test
the Gollywock. What a thrill. After a
couple of minor adjustments to nose
block trim and only about 500 turns,
it climbed away in a perfect pattern,
couldn’t have been happier.
Virtually flew "straight off the board".
Had three more flights with
increasing turns until the wind
picked up. Thankful for the RDT as
it landed outside the field twice but
luckily not into trees. Can’t believe
how well everything worked.
Thanks Bernard for your help and
advice, I am now keen to have a go
at a P30. Also tested the Witch
Hawk, which still has some more
adjustments to make, but we’ll get
there. I was at the field by myself so
photos from my phone are not the
best.

Cheers, John Urry
Balgal Beach, Queensland

     AVANZ NEWS          November 2020       Issue 180   Page 25
READER'S MODEL                        Bernard Scott

                                   MA Nov 1953

Continuing my fixation on designs that lack beauty
yet possess a certain je ne sais quoi.

Cox "product engine" with syringe for engine timing
and viscous button dethermaliser keep it light and
simple.

         AVANZ NEWS         November 2020                Issue 180   Page 26
MODEL STAND from plumbing supplies and pipe insulation - works for RC, too

AVANZ NEWS   November 2020                                  Issue 180   Page 27
REAL VINTAGE

The Aug 1951
Aeromodeller
editorial page
omitted the
customary
"Cover
Photograph"
description.

Aeromodeller
staff must have
assumed that
the man and
his model
would be
instantly
recognised.

Bob Copland
with one of his
Wakefields ...
but which one?

     AVANZ NEWS   November 2020   Issue 180   Page 28
FRANK ZAIC                                                  August 1st 1912 - May 27th 2005

Frank Zaic was tireless in his documentation of model aircraft
designs, many of which have been published only in his Yearbooks.
Although the resulting catalogue of plans was Zaic's crowning
achievement, he was also a meticulous researcher in the field of
model aeronautics, using practical techniques and experiments to
demonstrate his findings at a time when much of the model
aeronautical "research" appearing in magazines was more surmise
and fancy than fact.

He was an astute observer of human nature, sprinkling his books
with gems such as this one from the foreword of the 1953 YB :

"In a sense, we are in a peculiar position. Our models are not toys,
nor are they full size aircraft. Yet, they give us enough trouble to make
us think that they are a worthwhile effort for other keen minds. And
with the overall model air-plane activities being classified on toy or
juvenile level, it is a problem how to attract new members to our
circle."

It was intended to include extracts from the excellent Zaic biography
written for the AMA's History Project, but to my surprise and
disappointment, the AMA Archivist and Historian refused permission
to reprint.

Surprise because the dissemination of aeromodlling information
would seem to be a primary purpose of the History Project's archive.
Disappointment because the refusal was in stark contrast to Zaic's
motivation in his aeromodelling activities - the generous sharing of
knowledge for benefit the aeromodelling community.

Fortunately for aeromodelling, all of Zaic's output is still readily
available. Featured In this issue of AVANZ News are extracts from
the 1953 Yearbook. Subsequent issues will include selected nuggets
from the Zaic mine.

No question ... Frank would approve.                             Editor

    AVANZ NEWS         November 2020                                                         Issue 180   Page 29
1953 Model Aeronautic Yearbook                           Frank Zaic
                             While this section was being assembled, an email arrived requesting suggestions
                             for good performance Vintage hand launch glider designs. The reply included a
                             short list based on previous Nationals high performers: Hervat, Mayne, Hugelet,
                             and Vartanian. Three of these four can be found in the Yearbooks, an example
                             of how useful Zaic's works are to today's fliers.

                             Left: One of the very few Zaic designs included in the Yearbooks. While it may
                             not be competitive in E-Rubber Texaco, what a stunning head-turner it would be.

                             NZer Frank Bethwaite was a regular contributor to the Yearbooks. Looks like
                             the adjustment of that rubber band would be critical and difficult to achieve ...

AVANZ NEWS   November 2020                                                   Issue 180     Page 30
1953 Model Aeronautic Yearbook   Frank Zaic

AVANZ NEWS   November 2020                Issue 180   Page 31
RC 1/2A Texaco                                                                     Gary Burrows

1/2A Texaco and the Cox Babe Bee                                 or      How frustrating can a competition class be?
My thoughts in giving myself a fighting chance in making the eight       This is because the weather conditions make a big difference to
minute target time a real possibility. In no particular order (as they   the engine performance and you need to match the fuel to the
say before announcing a winner) here is what to aim for to be            conditions
successful at this class.                                                • Have a rev counter available to ensure that your engine is
                                                                         delivering the RPM you are aiming for - 4600 to 5400 rpm
• Get as long as possible motor run from your Babe Bee consistent        depending on the fuel mix you are using the revs will be at one end
with adequate power to climb the model depending on the                  of the range or the other. Remember fuel consumption is
conditions                                                               governed by rpm
• Choose a model that can be built down to the 8 oz per square foot      • Pick an engine that has 2 slits either side as exhaust ports
wing loading in accordance with the rules                                • Get a Cox silencer
• The model ideally should be about 16 / 17oz, although Allan            • Remove the spring starter if fitted as this can slow the revs if it
Knox tells me his Skipper is 22oz in accordance with the rules.          hits the prop
Remember that the motor is not producing the same power as it            • Pull the engine apart and clean thoroughly
would be at 20,000rpm. Some motors may be better than others             • Check and tighten the con rod to piston ball joint with the Cox tool
• The model should be as clean aerodynamically as possible.              for the job if slop is noted
Allan Knox’s Skipper 1948 is a good example                              • Check the reed valve for what type you have fitted and ensure
• The design should have a “Clark Y” section (better for                 that it is not damaged particularly where it seats. Mylar ones are
penetration / speed) though in certain conditions most sections          good
will be ok.                                                              • Replace the venturi / tank seal as this is a potential for a leak
• The older the design is the better chance you have of winning,         • Put in a fuel pickup that goes to the bottom of the tank . I use KS
providing you max out of course.                                         aluminum tube .062 dia and carefully drill the back plate hole .062
                                                                         dia, where the original plastic hose pick up went, and fit the KS
How do you go about this task?                                           tube using Loctite to hold it in position. This is a very delicate task
                                                                         to ensure that it ok as there are many pitfalls such as swarf staying
• Use a 9 x 4.5 APC electric prop for flywheel effect because our        in the drilled hole, Loctite actually blocking the hole, not enough
motor will be running at low revs                                        material in the back plate to take a .062dia drill without removing
• Have a selection of very clean filtered fuel mixes available e.g.      the pickup tit altogether. Bend the tube before actually Loctiting it
7% nitro / 7% oil. Synthetic is preferred. Brian Winch                   in position so that it goes round the venturi to the bottom of the
recommends Cool Power which is a castor/synthetic mix and                tank.
expensive. 10% nitro 5% oil etc ... Why? you might ask.

    AVANZ NEWS         November 2020                                                                            Issue 180     Page 32
RC 1/2A Texaco                                                                             Gary Burrows

ASSEMBLY OF ENGINE
• Assemble the engine ensuring that you have 3 copper shims            has sealed properly.
under the glow head.                                                   • Once you have the motor started and keep it running, check
• Make sure that when fitting the tank that the muffler is not         the RPM and depending on the fuel mix you have used it should
holding the tank to crankcase joint apart (we don’t want a air         be between 4,500 and 5,400.
leak here)                                                             • The motor RPM will vary up and down about 3/400 RPM this
• Make sure that the gasket between the tank to crankcase is           is normal
a good one                                                             • While the motor is running slowly top up the tank until it
• Fit silicone fuel tube over the needle valve to make sure that       overflows then start the stop watch and see how long it takes
there is a minimum of leaks                                            to run the tank dry (6 plus minutes should be the norm

RUNNING OF ENGINE                                                      this depends on the fuel mix you used)
• Fill tank with fuel until it overflows THEN block off the overflow   • After it has stopped check tighten the glow head as they have
and carry on filling until fuel flows out the venturi inlet, this      a bad habit of loosening.
makes sure that the needle valve passage is not blocked with           • In getting ready for a competition flight make sure that that the
castor (if that is what you decided to use) and ensures that the       motor has warmed up then fill the tank while the engine is
tank is full.                                                          running just prior to launching the model. Remember to switch
• Close off the muffler metal slide all the way so that the exhaust    the radio on as a 6 – 7minute motor run will go a long way with
only comes out the 1/8th hole. Initial starts may need a bit more      a properly trimmed free flight model.
opening of the slide until the motor warms up, then for economy
close it right off. Priming is done with a squirt up the 1/8th hole.   Have fun chaps. Don’t call me - I’m at the funny farm producing
• Apply the glow plug lead and proceed to flick. The motor will        another edition of Torque!
feel like it doesn’t have much compression but it is enough
provided the head

  AVANZ NEWS         November 2020                                                                            Issue 180     Page 33
MFHB VINTAGE NEWSLETTER   Barrie Russell

AVANZ NEWS   November 2020     Issue 180   Page 34
MFHB VINTAGE NEWSLETTER      Barrie Russell

AVANZ NEWS   November 2020      Issue 180   Page 35
COX ENGINES #2 *                                               Pee Wee .020                                  1957 - 1996

After the successful launch of the 1956 Babe            To put that into perspective, Honda's lively two
Bee .049 engine, Cox produced an .020 version of        litre engine in the 2020 Civic EX Salon produces
similar design a year later. With an even more          69 hp per litre.
catchy name than its big brother, the Pee Wee
                                                        In the USA, the Pee Wee's power was put to use
was widely praised by reviewers for both its looks
                                                        in the Cargo event where the aim was to make
and performance. The Pee Wee is not merely a
                                                        flights of over 40 seconds carrying the greatest
beautiful ornament, it is a real performer said one
                                                        weight of "cargo". Contest reports from the 1960's
reviewer, anticipating that the Pee Wee would be
                                                        show the Pee Wee providing the muscle in these
collected as well as flown.
                                                        weight-lifting feats. Today, the Pee Wee remains
The power output of the Pee Wee is remarkable,          a good choice for scale or small sport designs.
and even more remarkable has been the
                                                        Packaging of the Pee Wee was in blister packs
consistency of power figures quoted in reviews
                                                        with perforations between each engine - the
over the years. Model Aircraft, December 1958,
                                                        retailer tore off the engine(s) as required. The Pee
measured output at 110 hp per litre; Peter Chinn's
                                                        Wee on the right has its original retail price
review in Aeromodeller March 1976 claims 107
                                                        marked on the packaging. When noticed on ebay,
hp per litre; while Flying Models of July 1958
                                                        the bid was up to $271 ($NZ408). Returning a
records 1.85 hp per cubic inch which converts to
                                                        3871% profit, this Pee Wee has been a good
112 hp per litre - an average of 109.6 hp per litre.
                                                        investment !

                                        *   This series will briefly describe some of the more common Cox Engines.
                                   (This is #2 as the Babe Bee was featured in the Texaco article of AVANZ News 178)

        AVANZ NEWS           November 2020                                                                               Issue 180   Page 36
COX CORNER - 1/2A Texaco    A Fix for the Babe Bee
                                 Some Babe Bees do not have a flat on the top cylinder fin
                                 so the cylinder is unable to be restrained with a Cox spanner
                                 when the glow head is removed. As the glow head is removed,
                                 sometimes the whole cylinder / glow head combination
                                 unscrews. Judging from vice-grip marks on many engines,
                                 this was the tool of choice for separating the head and cylinder,
                                 damaging the fins in the process. After damaging a few
                                 myself, I decided to grind the missing flats onto the cylinder.
                                 Getting the sides of the flats diametrically opposed and
                                 parallel was solved by first jamming the cylinder on to a slightly
                                 tapered 3/8" maple engine bearer. Thus secured, the cylinder
                                 can be held and one face ground using a disc sanding table.
                                 Rolling the engine bearer 180 degrees positions the cylinder
                                 for a perfectly parallel second flat. A Cox head spanner is used
                                 to check that the flats are cut to the same depth as on other
                                 Babe Bees. I use a 6" adjustable spanner for cylinder restraint
                                 or removal as it bears on several fins rather than a single fin
                                 and is less likely to slip or cause damage.        Bernard Scott

AVANZ NEWS   November 2020                                     Issue 180      Page 37
RC LEADER BOARD                                                                      1st November 2020

RC Top 10 Leader Boards 2020                         Standings at 22 October
                                                     Precision Classes                                    8.      W Elley                635
                                                        Vintage Precision                                 9.      T Beaumont             556
The purpose of the Vintage SIG Leader Boards is                                                           10.     J Ryan                 556
                                                        Record: B Russell (2020)   600 + 200 + 200
to increase enjoyment of competition flying by              1.      B Russell      600 + 200 + 200
showing fliers how well they are doing relative to          2.      B Robinson     600 + 200 + 199
                                                                                                       Vintage E Duration
others. Scores are posted from the results of               3.      S McCurrie           600 + 200
                                                                                                       Record: B Harris (2018)           960 + 600
                                                            4.      B Treloar            600 + 199
contests, NDC, and independently-timed flying.                                                             1.     S Nicholas             960 + 330
                                                            5.      B Hall               600 + 199
The top 10 scores are updated throughout the                6.      A Knox               600 + 198
                                                                                                           2.     B Russell              960 + 318
year, just prior to each issue of AVANZ News. The                                                          3.     D Mossop               960
                                                            7.      D Crook              600 + 198
Leader Boards run for each calendar year, after                                                            4.     J Shorer               944
                                                            8.      D Mossop             600 + 197
                                                                                                           5.     B Robinson             938
which they are cleared and started afresh.                  9.      T Gribble            600 + 196
                                                                                                           6.     G Fulton               897
However, the record for each class is maintained            10.     J Bradbury           600 + 196
                                                                                                           7.     A Knox                 855
over time, and shown in blue italics with the year                                                         8.     P Townsend             821
in which it was set.                                    Classical Precision
                                                                                                           9.     S Hubbard              819
                                                                                                           10.    R Nimmo                810
                                                        Record: B Harris (2016)          598
New scores posted in this update are shown in               1.       G Fulton            596
red. The new postings are from events at                    2.       D Mossop            585
                                                                                                       Classical IC Duration
Pukekawa, Tuakau, Levin, and Christchurch.                  3.       B Russell           571
                                                                                                       Record: D Thornley (2017)         900 + 600
                                                            4.       D Gush              544
Among many very good scores, the highlights                                                                1.       B Scott              945
                                                            5.       J Butcher           533
are the Vintage Precision scores by Barrie Russell          6.       T Gribble           527
and Brett Robinson. Both went to a second
flyoff, with Barrie maxing that as well and Brett                                                      Classical E Duration
                                                                                                       Record: W Cartwright (2018) and
missing by just one second.                          Duration Classes                                  B Russell (2019)                  900 + 600
                                                        Vintage IC Duration                                1.       D Gush               900 + 371
Please email me if you spot any errors or               Record: S. Cox (2019)      780 + 500 + 391         2.       B Russell            900 + 352
omissions.                                                  1.      A Knox                780 + 361        3.       W Cartwright         887
                                                            2.      S Grant               770              4.       P Townsend           879
                                                            3.      B Treloar             764              5.       B Robinson           851
Wayne Cartwright                                            4.      B Scott               741              6.       P Townsend           760
rwcartwright4@gmail.com                                     5.      T Beaumont            685              7.       S Nicholas           745
                                                            6.      S McCurrie            671              8.       J Butcher            114
                                                            7.      D Gush                639

        AVANZ NEWS         November 2020                                                                         Issue 180         Page 38
RC LEADER BOARD                                                                   1st November 2020
Texaco Classes                                        6.      A Knox                 1280              5.      J Butcher               3757
                                                      7.      T Gribble               636`             6.      W Cartwright            3555
  Vintage 1/2A Texaco
                                                                                                       7.      D Crook                 3337
  Record: A Knox (2018)      1500 + 1833
                                                  Classical 1/2E Texaco                                8.      B Russell               2702
      1.      A Knox                 1971
                                                  Record: D Crook (2020)      2774                     9.      D Baunton               2832
      2.      J Butcher              1498
                                                      1.       D Crook               2774              10.     A Knox                  2052
      3.      B Scott                1490
                                                      2.       P Townsend            2310
      4.      J Ryan                 1283
                                                      3.       B Scott               1946          Sport Cabin Texaco IC
      5.      W Cartwright           1182
                                                      4.       T Gribble             1789          Record: S McCurrie (2020) 1122
      6.      D Little                525
                                                      5.       W Cartwright          1339             1.       S McCurrie              1122
                                                                                                      2.       A Knox                   927
  Vintage A Texaco
                                                  Vintage E Texaco                                    3.       B Scott                  633
  Record: A Knox (2018)      1860 + 1870
                                                  Record: A Knox (2020)       3000
      1.      B Scott                1860
                                                      1.      A Knox                 3000          Sport Cabin Texaco E
      2.      B Treloar              1852
                                                      2.      D Crook                2535          Record: K Trillo (2019)     4457
      3.      S Cox                  1848
                                                      3.      W Cartwright           2337              1.      P Townsend              2996
      4.      A Knox                 1568
                                                      4.      D Mossop               2160              2.      J Butcher               2777
      5.      I Munro                1502
                                                      5.      K Fisher               1965              3.      K Fisher                2636
      6.      B Russell              1428
                                                      6.      B Russell              1507              4.      D Gush                  2042
      7.      J Butcher              1235
                                                      7.      G Fulton               1322              5.      T Gribble               1819
                                                      8.      D Baunton              1099              6.      K Trillo                1705
  Vintage Open Texaco
                                                      9.      T Gribble               700              7.      G Fulton                 958
  Record: B Treloar (2018)   1840 + 1703
                                                                                                       8.      B Russell                696
      1.      B Treloar              1840 + 782
                                                  Classical E Texaco                                   9.      D Crook                  552
      2.      B Scott                1840
                                                  Record: W Cartwright(2020) 2366
      3.      S Cox                  1830
                                                      1.       W Cartwright          2366          Vintage and Classical Scale Texaco
      4.      T Glogau               1750
                                                      2.       D Gush                2186          Record: A Knox (2020)        1680 + 786
      5.      A Knox                 1657
                                                      3.       P Townsend            2106              1.      A Knox                   2466
      6.      I Munro                1529
                                                      4.       J Butcher             1674
      7.      B Russell              1264
                                                      5.       K Fisher              1616          Tomboy IC
      8.      J Butcher              1045
                                                      6.       T Gribble             1477          Record: R Anderson (2015) 1432
      9.      T Beaumont              917
                                                      7.       B Russell             1418              1.      B Scott                  441
                                                      8.       G Fulton               867
  Vintage 1/2E Texaco
                                                                                                   Tomboy E
  Record: P Townsend (2020) 3689
                                                  Vintage E Rubber Texaco                          Record: P Townsend (2020) 3368
      1.      P Townsend            3689
                                                  Record: B Russell (2019):   5685                     1.      P Townsend              3368
      2.      W Cartwright          2138
                                                      1.      P Townsend             4744              2.      D Gush                  2873
      3.      B Scott               1980
                                                      2.      K Fisher               4712              3.      J Butcher               1927
      4.      B Russell             1663
                                                      3.      D Gush                 4272              4.      K Trillo                1200
      5.      K Fisher              1597
                                                      4.      D Mossop               3900
       AVANZ NEWS            November 2020                                                                    Issue 180       Page 39
FREE FLIGHT DREAMING

                                                     Gary Odgers
                                                     150% Dixielander
                                                     Photo: Malcolm Campbell

AVANZ NEWS   November 2020                     Issue 180   Page 40
COVER STORIES

AVANZ NEWS   November 2020   Issue 180   Page 41
MISCELLANEOUS

Nationals preparations are underway with             NZ ICON #180                KARITANE NURSES
very effort being made to ensure fliers are   The Karitane movement, like the Plunket Society, was founded by health reformer
comfortable on the field ...                  Frederic Truby King. His first training institution and children’s hospital was set up at
                                              Karitane, near Dunedin, in the early 1900s. By 1912 there were sixty Karitane homes for
                                              babies across the country. Trainees spent at least one year learning about newborn and
                                              baby care and caring for new mothers before undertaking four to six months on a practical
                                              placement with families in the community.
                                              Training ceased in 1978 and the last Karitane home closed in 1980. In 2019, there were
                                              fifteen known Karitane nurses still working in the field.
                                              King's strong eugenic beliefs helped set the public health agenda in the 1920s. He urged
                                              New Zealanders to do all they could to breed an ‘Imperial race’ and condemned birth
                                              control and abortion as instruments of ‘race suicide’.
                                              Truby King was a member of the 1924–25 Committee of Inquiry into Mental Defectives
                                              and Sexual Offenders, whose report concluded that the ‘unchecked multiplication of the
                                              feeble-minded and epileptic’ was causing ‘the serious deterioration of the race and was
                                              a most serious menace to the future welfare and happiness of the Dominion’.
                                              Among Mr King's other beliefs was that the education of girls, in anything other than
                                              domestic skills, used up their energy and could make them unable to breed or breastfeed.
                                              From his observations of
                                              patients as Superintendent of
... and are well nourished.                   Seacliff Asylum near Dunedin
                                              he concluded that mental
                                              degeneration was caused by
                                              poor mothering. If women
                                              could be taught the 'science'
                                              of mothering, the racial
                                              decline of the Empire could be
                                              arrested and NZ women
                                              would breed soldiers fit to
                                              serve the Empire.
                                              Right: Karitane nurses with
                                              babies outside the Karitane
                                              Hospital, Wanganui, in 1929,
                                              although the nurse at lower left
                                              appears to have misplaced
                                              hers.

    AVANZ NEWS        November 2020                                                            Issue 180     Page 42
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